所以我想做一个程序来计算不同行星的重量。这是令人沮丧的,因为它无法正确计算。在
if ("Mercury" or "mercury" == planetName):
weight = weightObject * mercury
elif ("Venus" or "VEnus" == planetName):
weight = weightObject * venus
elif ("Earth's Moon" or "Earths Moon" == planetName):
weight = weightObject * earthsmoon
elif ("Mars" or "MArs" or "MARS" == planetName):
weight = weightObject * mars
elif ("Jupiter" or "JUpiter" == planetName):
weight = weightObject * jupiter
elif ("Saturn" or "saturn" == planetName):
weight = weightObject * saturn
elif ("uranus" or "Uranus" == planetName):
weight = weightObject * uranus
elif ("neptune" or "Neptune" == planetName):
weight = weightObject * neptune
elif ("pluto" or "Pluto" == planetName):
weight = weightObject * pluto
else:
weight = -1
#To print out the planet and weight and make sure its a planet and non negative number
#It will not calculate a negative weight or different planet than listed
if (weightObject > 0):
print("The weight of the object on",planetName,"is {0:,.2f}".format(weight))
else:
print("Error: Planet name not found or number was negative. Please try again.")
如果我为每个行星输入20.5,那么所有行星的数字都是完全相同的。有人能帮忙吗?在
应该是
^{pr2}$或者更简洁
^{3}$甚至是
尝试
if ("Mercury"==planetName or "mercury"==planetName) ...
等等。您的第一个语句很可能是由于
if ("Mecury")
的计算结果为true
而执行的。在尝试:
或者更简单:
^{pr2}$另外,打开python解释器并开始键入以下内容是一个好主意:
^{3}$了解python中哪些计算结果为true,哪些计算结果为false。它会让你的生活更轻松
或者另一个很酷的把戏,把你乘以的值放到字典里。在
相关问题 更多 >
编程相关推荐